strike out in a new line
Cheng Yiyan, a Chinese idiom, is ch é ngy ī Ji ā y á n in pinyin, which means that knowledge has its own system and can be divided into different schools. It comes from Sima Qian's letter to Ren Shaoqing in Han Dynasty.
Source: Han · Sima Qian's report on ren'an: "to study the time between heaven and man, to understand the changes of ancient and modern, to become a family's words."
Example: after Sima Xiangru, Tai Shigong, Liu Xiang and Yang Xiong of the Han Dynasty, the author of each word's article was not born, so the deeper he explored the origin, the more he established it. New book of the Tang Dynasty biography of Han Yu
strike out in a new line
keep a close watch day and night - zhòu jǐng mù xún
pride oneself on being a veteran - yǐ lǎo mài lǎo
owe a debt of gratitude and hope to recompense it - gǎn ēn tú bào